21CrMoV5-7 / 1.7709
2015-11-28 16:49:35 Origin： Remark：0 Click：
DIN EN 10028-2 / DIN 17755 Specification Steel 1.7709 Round bar 21CrMoV5-7 Stock Available, Hot forging, Hot rolling, Heat treatment
Stock Available & Inventory: Round bar Diam. 14 ~ 150mm
TECHNICAL DATA SHEET - 21CrMoV5-7 & 1.7709
MATERIAL TYPE - High temperature alloy steel
MATERIAL STANDARDS: DIN EN 10028-2, DIN 17755
CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.17 ~ 0.25
Silicon, Si (％): ≤ 0.40
Manganese, Mn (％): 0.40 ~ 0.80
Phosphorus, P (％) ≤: 0.030
Sulfur, S (％) ≤: 0.030
Chromium, Cr (%): 1.20 ~ 1.50
Nickel, Ni (%): ≤ 0.60
Molybdenum, Mo (%): 0.55 ~ 0.80
Vanadium, V (％): 0.20 ~ 0.35
Molybdenum, Mo (%): 0.55 ~ 0.80
Vanadium, V (％): 0.20 ~ 0.35
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Mechanical property ≥ Rm / MPa: 700 ~ 850
Mechanical property ≥ Rp0.2 / MPa: 550
Mechanical property ≥ A5 (%): 16.0
Mechanical property ≥ Akv / J: 69
Mechanical property ≥ Rp0.2 / MPa: 550
Mechanical property ≥ A5 (%): 16.0
Mechanical property ≥ Akv / J: 69
Hardness after annealed HBW : 205~250
HOT WORKING & HEAT TREATMENT
Hot working temperature /℃: 1100~850
Heat treatment temperature/℃|annealing /℃: 650～730
Heat treatment temperature/℃|quenching /℃: 890～940 Oil or Air cooled
Heat treatment temperature/℃|tempering /℃: 680～720
HOT WORKING & HEAT TREATMENT
Hot working temperature /℃: 1100~850
Heat treatment temperature/℃|annealing /℃: 650～730
Heat treatment temperature/℃|quenching /℃: 890～940 Oil or Air cooled
Heat treatment temperature/℃|tempering /℃: 680～720
PRODUCT DESCRIPTION
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements. Bars are usually supplied bright in the annealed condition, or bright annealing specially.
Final heat treatment - Quenched and Tempered
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements. Bars are usually supplied bright in the annealed condition, or bright annealing specially.
Final heat treatment - Quenched and Tempered
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft, Pressure vessel.
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
Mechanical parts - connecting rod, bolt and nut, Multidiameter shaft, Pressure vessel.
PRODUCT PROFILE & DIMENSIONS
Round bar / Disc (diameter): 5.5mm to 850mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 400mm X W100 ~ 1200mm X L1000 ~ 5000mm
Forging piece: stepped shafts, other different shapes based on OEM.
Round bar / Disc (diameter): 5.5mm to 850mm
Square bar / Flat bar: 10mm to 800mm
Length: Fixed length or random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T60 - 400mm X W100 ~ 1200mm X L1000 ~ 5000mm
Forging piece: stepped shafts, other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical inquiry, pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
If you meet further on any technical inquiry, pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.
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